Simulations of energy funneling and time- and frequency-gated fluorescence in dendrimers

被引：66

作者：

Kirkwood, JC ^{[1
]}

Scheurer, C ^{[1
]}

Chernyak, V ^{[1
]}

Mukamel, S ^{[1
]}

机构：

[1] Univ Rochester, Dept Chem, Rochester, NY 14627 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 2001年 / 114卷 / 05期

关键词：

D O I：

10.1063/1.1334612

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Exciton transport and relaxation in optically excited phenylacetylene dendrimers is simulated using the Redfield equations. The interplay of entropic (periphery-bound) and energetic (center-bound) driving forces is explored. The fluorescence signal computed using the Doorway-Window representation provides a direct probe for exciton dynamics. The propagated exciton density matrix is analyzed and several measures of the time-dependent excitonic coherence sizes are proposed and calculated. (C) 2001 American Institute of Physics.

引用

页码：2419 / 2429

页数：11

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